Question

15= 3-4a what is the value of a in the equation

Answer 1

Step 1)

15 = 3-4a
15 =3+-4a
15 = -4a + 3

Step 2)

-4a + 3 = 15

Step 3)
-4a + - 3 = 15 - 3
-4a = 12

Step 4)

-4a/-4a = 12/-4

a = 3

Answer is a=3

Answer 2

5

Explanation:

when 13 is subtracted from 5 we get 8

again when 8=2m

8/2=m

4=m

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